diff --git a/xos/configurations/cord/make-vtn-networkconfig-json.sh b/xos/configurations/cord/make-vtn-networkconfig-json.sh
old mode 100755
new mode 100644
index 5256292..aa66ee7
--- a/xos/configurations/cord/make-vtn-networkconfig-json.sh
+++ b/xos/configurations/cord/make-vtn-networkconfig-json.sh
@@ -9,6 +9,7 @@
     "apps" : {
         "org.onosproject.cordvtn" : {
             "cordvtn" : {
+                "gatewayMac" : "00:00:00:00:00:01",
                 "nodes" : [
 EOF
 
@@ -28,13 +29,21 @@
     echo $NODE
     NODEIP=`getent hosts $NODE | awk '{ print $1 }'`
 
+    # This part is cloudlab-specific. It examines the flat-net-1 network and extracts
+    # the eth device and ip address that was assigned to flat-net-1.
+    sudo scp root@$NODE:/root/setup/info.flat-lan-1 $SETUPDIR/flat-lan-$NODE
+    PHYPORT=`bash -c "source $SETUPDIR/flat-lan-$NODE; echo \\\$DATADEV"`
+    LOCALIP=`bash -c "source $SETUPDIR/flat-lan-$NODE; echo \\\$DATAIP"` 
+
     ((I++))
     cat >> $FN <<EOF
                     {
                       "hostname": "$NODE",
                       "ovsdbIp": "$NODEIP",
                       "ovsdbPort": "6641",
-                      "bridgeId": "of:000000000000000$I"
+                      "bridgeId": "of:000000000000000$I",
+                      "phyPortName": "$PHYPORT",
+                      "localIp": "$LOCALIP"
 EOF
     if [[ "$I" -lt "$NODECOUNT" ]]; then
         echo "                    }," >> $FN